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Police & Paramilitary | Delhi Police Constable

Quantitative Aptitude for Delhi Police Constable

Delhi Police Constable sets 15 Quantitative Aptitude questions for 15 marks in the Computer Based Examination, so it is worth planning your preparation around the topics below.

15 questions15 marks5 topics

How to approach Quantitative Aptitude in Delhi Police Constable

Speed decides this section. The arithmetic and data-interpretation sets are where the marks are, so the priority is a reliable method and quick calculation rather than exotic shortcuts. Lock down tables, squares and reciprocals, then drill data interpretation until reading the set is faster than solving it.

Weightage in the paper

How much Quantitative Aptitude is worth in each Delhi Police Constable stage, from the official pattern.

StageQuestionsMarksTimeShare
Computer Based Examination1515—15%

Quantitative Aptitude syllabus for Delhi Police Constable

Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.

  • Number system and simplification
  • Percentage, ratio and averages
  • Profit, loss and interest
  • Time, speed, distance and work
  • Basic mensuration and data interpretation

Sample Quantitative Aptitude questions with solutions

Written to the Delhi Police Constable pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.

Order of operations · solved example

Simplify: 36 ÷ 6 + 4 × 2.

  • 14Correct
  • 20
  • 16
  • 12

Solution

Following the order of operations, do division and multiplication first: 36 ÷ 6 = 6 and 4 × 2 = 8. Then 6 + 8 = 14.

Profit and loss · solved example

A shopkeeper sells an article for Rs 575 and makes a 15% profit. What was the cost price?

  • Rs 500Correct
  • Rs 490
  • Rs 525
  • Rs 510

Solution

A 15% profit means the selling price is 115% of the cost. So cost = 575 ÷ 1.15 = 500.

Ratio and proportion · solved example

Two numbers are in the ratio 3 : 4 and their sum is 63. What is the larger number?

  • 36Correct
  • 27
  • 28
  • 35

Solution

The parts total 3 + 4 = 7, so one part is 63 ÷ 7 = 9. The larger number is 4 parts = 4 × 9 = 36.

Quadratic equations · solved example

In each, solve for x and y and give the relation: I. x² + 5x − 84 = 0 II. y² + 1y − 72 = 0

  • x > y
  • x < y
  • x ≥ y
  • x ≤ y
  • no fixed relationCorrect

Solution

The roots are x = 7, -12 and y = 8, -9. Comparing every x with every y gives "no fixed relation".

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Practise Quantitative Aptitude

Untimed drills with the method shown after every question — the step between learning a topic and sitting it under a clock.

Sit Quantitative Aptitude under a real clock

Quantitative Aptitude shows up in every Delhi Police Constable mock test, in the same interface, with sectional locking and negative marking.

  • Delhi Police Constable CBE: 12-question practice mock

    12 questions | 12 min

    Start

  • Delhi Police Constable: full-length mock (100 questions)

    100 questions | 1 hr 30 min

    Start

  • Delhi Police Constable: full-length mock 2 (100 questions)

    100 questions | 1 hr 30 min

    Start

Frequently asked questions

How many Quantitative Aptitude questions are asked in Delhi Police Constable?

Delhi Police Constable 2026 cycle sets 15 Quantitative Aptitude questions for 15 marks in the Computer Based Examination.

Is there negative marking for Quantitative Aptitude in Delhi Police Constable?

Yes. Delhi Police Constable deducts one fourth of a mark for each wrong answer, Quantitative Aptitude included, so unsure guesses cost you. 0.25 marks are deducted for each wrong answer; each question carries 1 mark. Unanswered questions carry no penalty.

Which Quantitative Aptitude topics matter most for Delhi Police Constable?

The Delhi Police Constable syllabus lists Number system and simplification, Percentage, ratio and averages, Profit, loss and interest, Time, speed, distance and work, Basic mensuration and data interpretation. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.

How can I practise Quantitative Aptitude for Delhi Police Constable free?

Every Quantitative Aptitude question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the Delhi Police Constable mock tests to sit it under a real clock with negative marking.